Coleman Shrimp (Periclimenes colemani), Puerto Galera, Philippines. I found this pair of beautiful shrimps living on their host Fire Urchin whilst diving with guests. As Fire Urchins are not the quickest of creatures, I returned the next day and after checking around 30 different Fire Urchins, I found them about 15m from where they previously were. Note that the larger female has a parasitic bopyrid isopod infested in the gills causing swelling to the right side of the carapace.  Nikon D200 & 60mm, Subal ND20, Inon Z240 Strobes, f/36 1/125th.